Bibcode
Galvan, F. J.; Garcia, M.; Callanan, P. J.
Bibliographical reference
American Astronomical Society, 195th AAS Meeting, #36.10; Bulletin of the American Astronomical Society, Vol. 31, p.1421
Advertised on:
12
1999
Citations
0
Refereed citations
0
Description
A red inter-loper has been detected in the vicinity of the faint
Tremendous Outburst Amplitude Dwarf (TOAD) AL Comae, with a 3.95
arc-seconds separation between the center of both systems. New infrared
photometry was taken with the 2.1m IRIM camera on the observation nights
of July 11 and 12 of 1997. Analysis of this data shows that the
previously published K band magnitude for AL Comae is not 15.8 but
rather 17.9, with a V-K magnitude similar to that of G type star. We
conclude that previous photometric analysis of AL Comae was contaminated
by the close red dwarf. This suggests that the results from the optical
spectral analysis by Howell et al. might have been contaminated as well.
A new spectorscopic analysis in the optical range has been done on data
taken with the 4m MMT on February 7, 1997. These new analysis agrees
with our new photometric results. We re-analyzed the WHT data published
in Howell et al. taking the red neighbor into acount, but the
re-analysis seemed to be consistent with that of the published paper.